Possibly insect damage. Try treating with imidacloprid or bifenthrin or a mixture of both. See if that helps. Jim Shields At 01:11 PM 10/30/2011 -0700, you wrote: >Last year, over time, the leaves became quite distorted. Unfortunately I >don't have pictures of that nor do I recall how it looked in a way that I >could describe it. > >Randy ************************************************* Jim Shields USDA Zone 5 P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Lat. 40° 02.8' N, Long. 086° 06.6' W